java/admin/src/main/java/com/exadel/frs/system/security/CustomUserDetailsService.java
/*
 * Copyright (c) 2020 the original author or authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */

package com.exadel.frs.system.security;

import com.exadel.frs.commonservice.repository.UserRepository;
import lombok.RequiredArgsConstructor;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@RequiredArgsConstructor
@Service
public class CustomUserDetailsService implements UserDetailsService {

    private final UserRepository userRepository;

    @Override
    @Transactional
    public UserDetails loadUserByUsername(String email) throws UsernameNotFoundException {
        return userRepository.findByEmail(email.toLowerCase())
                             .orElseThrow(() -> new UsernameNotFoundException(
                                     String.format("User %s does not exists", email))
                             );
    }
}